Dynamometers; Ohmmeters; Antenna parameter measuring apparatus; Antennas for wireless communications apparatus; Apparatus for transmitting radio programmes and radio relay messages; Computer-controlled apparatus for testing and measuring radio frequency signals, concentrations of gas and liquids, audio signals; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Continuity test apparatus for electrical circuits; Devices for wireless radio transmission; Electronic devices, namely, energy meters for tracking and monitoring energy usage; Electronic devices, namely, radio frequency repeaters used in long range communication for tracking and monitoring energy usage; Electronic testing equipment, namely, telecommunication line integrity testing apparatus; Frequency meters; Power supply connectors and adaptors for use with portable electronic devices; Radio beacon machines and apparatus; Radio receivers and monitors for reproduction of sound and signals; Radio receivers and radio signal tuners; Testing and measuring equipment for use in testing the performance and efficiency of power plant equipment; Two-way radios; Wireless controllers to remotely monitor and control the function and status of other electrical, electronic, and mechanical devices or systems, namely, remote metering systems, gas and liquid cylinders, vehicle tracking devices, energy and utility systems, security systems, lighting systems